Ims bearing porsche boxster

Most models of the generation of the Porsche sports car were afflicted with a vulnerability in the intermediate shaft (IMS) that drove their engines' camshafts. Failure of the ball bearing of the IMS could destroy the engine entirely. The M96/M97 engines in the Porsche as well as Porsche Boxster and Cayman.

The IMS in the M96 (and subsequent M97) engine is located directly beneath the From to , Porsche use a dual row intermediate shaft bearing which . Fast forward to , Porsche's newest lineup of Boxster, Cayman, and

About logo. The Porsche logo is a coat of arms that shows: a riding horse and a deer antler, framed by red stripes. The emblem is dedicated to the home city of the concern - Studgart. Strips and horns are symbols of the city, and the stallion is depicted in connection with the fact that originally in place of the city, in the year 950 there was a horse farm, around which a whole city was gradually built.

IMS BEARING - I would like to know if you can give me the model years and/or the vin# range for the Boxster S with the questionable IMS.

Both jobs require the transmission to be removed, so there is a big saving on labour charges to have them done together. If you think the price is too high, shop around. I am factoring in the cost of an IMS in my budget, even though it is not justified by the straight economics. I did not know about the IMS issues until I read this thread.

Porsche Intermediate Shaft Bearing issue - Wikipedia

The purpose of the intermediate shaft is to drive the camshafts indirectly off the crankshaft. By using an intermediate shaft, the speeds of the chains are reduced, which is better for the chain life.

This basic design was used through the entire lifespan of aircooled six-cylinder Metzger engines used through to The inclusion of an intermediate shaft which drives the camshafts indirectly off the crankshaft has been a mainstay of the horizontally-opposed flat 6 engine utilized by Porsche.

The same design has been retained with the water-cooled Turbo, GT2 and GT3 models as their engines are based off the same engine case with the same internals as the earlier aircooled engines.

This intermediate shaft features plain bearings that are pressure fed engine oil for lubrication and never fail. There are so many reasons for bearing failure, and usually each failure is due to a combination of causes, not just a single cause. Spalling occurs as a result of normal fatigue where the bearing has reached the end of its normal lifespan but this is not the most common cause of IMS failure. Once this cycle begins, wear is a greatly accelerated and the bearing will fail prematurely.

In worst-case scenarios, the cam timing can also be thrown off, causing valve to piston contact. In that case, the engine will not be accepted as a core, requiring the purchase of another core or to pay an ever increasing core charge from Porsche on top of the cost of the replacement engine.

A complete engine disassembly is required to replace the intermediate shaft and in most cases, complete rebuild or engine replacement is your ONLY option.

Aside from the proactive approach of replacing the IMS bearing prior to such a failure, prevention and early detection are some of the steps that can be taken to try and minimise the risk of a costly engine failure. With model year through engines however, the bearing is indeed accessible. Any IMS bearing replacement is intended to be installed as a pro-active measure in preventative and regular maintenance.

Once an engine has suffered a failure, replacement of the intermediate shaft bearing is no longer an option. Installing a replacement IMS bearing in an engine that has already suffered a failure will result in a subsequent failure due to collateral damage, including but not limited to debris contaminating the new bearing. Do not drive the car until it has been inspected by a trained Porsche technician, as you could cause catastrophic engine damage and failure.

It is clear to see that the reduced load capacity of the single row IMS bearing is a significant factor to the increased number of failures. Maintenance of these should be at the forefront of any , , and owners note: If you want to ask some more questions, learn about costs and how much time your Porsche will be off the road, give Nathan a call on 02 or service autohaushamilton.